someone who's been in prison for criminal activity not to become a terrorist to address either through education means or kind of work on their employment, future implement outside prison. because a lot of literature deals with recidivists and folks have been left out of on time of day and are perpetrating attacks in aqap or in other outfits, either in syria or yemen or elsewhere. well, that's it for now. thank you. >> our next big risk olson, has every rich expense as well consulting, advising governments and industry and the academic community. particularly related to the nature of the threat, and i remember very vividly after the attack in tokyo, which was mass destruction, that you were kept quite busy to make sense out of that period and i really think that with your very wide experience, is to share with us your thinking about various scenarios and possibilities, the use of what we call some, some sort of weapon of mass destruction, whether chemicals, sarin, or anthrax in some cases that we have seen in the united states and abroad related to deaths potential. so, kyle, if you please come